5255748
Flat Head Cap Screw
Cummins®

The Cummins 5255748 Flat Head Cap Screw is a specialized fastener designed for use in commercial trucks. Its purpose is to provide secure and reliable fastening in various applications within the truck’s structure and components. This screw is engineered to meet the demanding requirements of heavy-duty truck environments, ensuring durability and performance under challenging conditions.

Basic Concepts of Flat Head Cap Screws

Flat head cap screws are a type of fastener characterized by a flat, countersunk head that sits flush with or below the surface of the material being fastened. They are commonly used in applications where a smooth surface is required or where the screw head needs to be concealed. Mechanically, flat head cap screws function by converting torque applied to the head into tensile force, which clamps the fastened materials together securely .

Purpose and Role in Truck Operation

This Cummins part plays a significant role in the operation and maintenance of commercial trucks. It is utilized in areas where secure fastening is crucial, such as in the attachment of body panels, engine components, and other structural elements. Its design ensures that it can withstand the vibrations and stresses encountered in heavy-duty truck applications, contributing to the overall reliability and safety of the vehicle .

Key Features

The 5255748 boasts several key features that enhance its functionality. It is typically made from high-strength materials, such as alloy steel, to provide superior durability. The screw features a fine or coarse thread, depending on the specific application, which allows for efficient and secure fastening. Additionally, its flat head design ensures a low profile, reducing the risk of interference with other components.

Benefits

Using the 5255748 offers several benefits. Its high-strength material composition and precise thread design contribute to improved fastening security, ensuring that components remain firmly in place. The screw’s resistance to vibration makes it ideal for use in dynamic environments, such as those found in commercial trucks. Furthermore, its durability in harsh conditions ensures long-lasting performance, reducing the need for frequent replacements .

Installation Guidelines

Proper installation of the 5255748 is crucial for ensuring its effectiveness and longevity. Begin by selecting the appropriate drill bit to create a pilot hole, which should be slightly smaller in diameter than the screw’s core. Use a torque wrench to apply the recommended torque specifications, ensuring that the screw is tightened to the manufacturer’s guidelines. It is also advisable to use a torque-limiting tool to prevent over-tightening, which can lead to damage .

Troubleshooting and Maintenance

Common issues associated with flat head cap screws include loosening due to vibration and corrosion. To troubleshoot these problems, regularly inspect the screws for signs of wear or damage. If corrosion is detected, clean the affected area and apply a corrosion-resistant coating. To prevent loosening, consider using lock washers or thread-locking compounds. Regular maintenance, such as periodic tightening and inspection, will help ensure the longevity and reliable performance of the screws.

Safety Considerations

When working with flat head cap screws, it is important to observe several safety practices. Always wear appropriate personal protective equipment, such as gloves and safety glasses, to protect against injury. Use the correct tools and follow the manufacturer’s torque specifications to avoid over-tightening, which can cause damage to the screw or the fastened materials. Additionally, ensure that the work area is clean and free from debris to prevent accidents.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established itself as a trusted name in the commercial truck industry. The company is committed to quality and innovation, continually developing advanced components that enhance the performance and reliability of commercial vehicles.

Role of Part 5255748 Flat Head Cap Screw in Engine Systems

This part is integral to the assembly and secure functioning of various engine components. In the context of the Engine Oil Cooler, this screw is employed to fasten the cooler to the engine block or other mounting surfaces, ensuring a stable and leak-proof connection that is essential for the efficient transfer of heat away from the engine oil.

When considering the Front Cover of an engine, the Flat Head Cap Screw plays a role in securing this cover to the engine block. This is important for maintaining the integrity of the engine’s internal environment, protecting sensitive components from contaminants, and ensuring that the engine operates within optimal parameters.

In the Lubricating Oil Cooler Module, the screw is used to attach the module to the engine or its supporting structure. This ensures that the module remains firmly in place, allowing for effective cooling of the lubricating oil, which is vital for reducing friction and wear on moving parts within the engine.

For the Lubricating Oil Pump, the Flat Head Cap Screw is often utilized to secure the pump housing or to attach the pump to the engine block. This secure attachment is necessary for the pump to function correctly, providing consistent oil pressure and flow to lubricate engine components, thereby enhancing performance and longevity.

Lastly, in the Oil Cooler system, the screw is instrumental in attaching the cooler to the engine or its designated mounting point. This secure fit is essential for the cooler to effectively dissipate heat from the oil, maintaining the oil at an optimal temperature for lubrication and protection of engine parts.

Conclusion

The Cummins 5255748 Flat Head Cap Screw is a vital component in the assembly and maintenance of commercial trucks and various engine systems. Its design and features ensure secure fastening, durability, and performance under challenging conditions, contributing to the overall reliability and safety of the vehicle and engine systems.

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: Van Gelder, K. T. (2018). *Fundamentals of Automotive Technology Principles and Practice*. Jones Bartlett Learning.
: Hiereth, H., Prenninger, P., & Drexl, K. W. (2010). *Charging the Internal Combustion Engine*. Springer.
: General Information. (n.d.). *Operation and Maintenance Manual*. Bulletin Number 4021343.